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| GB/T 29403-2012 | English | 150 |
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Technique guide for dealing with sand abrasive erosion in reaction hydraulic turbine
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GB/T 29403-2012
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Basic data | Standard ID | GB/T 29403-2012 (GB/T29403-2012) | | Description (Translated English) | Technique guide for dealing with sand abrasive erosion in reaction hydraulic turbine | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K55 | | Classification of International Standard | 27.140 | | Word Count Estimation | 25,252 | | Quoted Standard | GB/T 2900.45; GB/T 8564; GB/T 10969; GB/T 15468; GB/T 15469.1; SL 142; DL/T 838-2003; IEC 60193 | | Regulation (derived from) | National Standards Bulletin 2012 No. 42 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the reaction turbine selection, design, manufacture, installation, operation, maintenance and repair of technical requirements related to sand abrasion. This standard applies to hydroelectric turbine installation counterattack. | GB/T 29403-2012: Technique guide for dealing with sand abrasive erosion in reaction hydraulic turbine
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Technique guide for dealing with sand abrasive erosion in reaction hydraulic turbine
ICS 27.140
K55
National Standards of People's Republic of China
Reaction turbine to sand abrasion Technical Guidelines
Issued on. 2012-12-31
2013-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
Introduction Ⅳ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 General 4
5 sediment passing through turbine analysis and prevention measures for sediment Station 4
Turbine selection and design 5 6
7 turbine material selection and manufacturing 6
Turbine installation 7 8
9 Turbine Operation and Maintenance 7
10 turbine sand abrasion guarantee value 8
Appendix A (informative) wear test apparatus and test methods 9
Application of Annex B (informative) Turbine commonly used materials and protective materials 15
Annex C (informative) turbine wear observations 17
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by the People's Republic of China Ministry of Water Resources.
This standard by the Ministry of Water Resources and Hydropower Planning and Design centralized.
This standard is drafted by. China Institute of Water Resources and Hydropower.
Participated in the drafting of this Standard. China Three Gorges Corporation, Harbin Institute of Electronics, Dongfang Electrical Machinery Co., Ltd., water north
Survey Design and Research Co., Ltd.
The main drafters of this standard. the land force, Wu Peihao, Yujiang Cheng, Wu Jian, Xu Hongquan, Dai Jiang, Masu Ping, Shi Qinghua, Liu Jie, Wuxi Dong, Gu four lines,
Juan, sinus pine.
Introduction
High sediment content in many of our rivers, sand abrasion turbine problem is very prominent. In order to effectively reduce sediment turbine
Hazards, ensuring economic and safe operation of the station should be in the design and selection of hydropower turbines, design, manufacture, installation, operation, maintenance and repair
Wear problems and other aspects to consider and take appropriate action, it is necessary to develop this standard.
Study on the sediment carried turbine wear more than 50 years of history, especially in the past 30 years about the research, design, manufacture, operation
Each party maintenance and other units, sediment wear mechanism turbines, two-phase flow theory, model selection, anti-wear measures, operation and maintenance, testing technology
Surface, a lot of experimental research and practice, access to a wealth of research and practical experience, this standard has laid a good preparation
Good foundation.
Reaction turbine to sand abrasion Technical Guidelines
1 Scope
This standard specifies the reaction turbine selection, design, manufacture, installation, operation, maintenance and repair of technology involved in sand abrasion
Claim.
This standard applies to installations in reaction turbines Hydropower Station.
Note. For water containing corrosive substances or pH turbine protection and greater precautions and other water conditions need separate consideration.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 2900.45 Electrotechnical terminology Hydropower Plant Equipment
GB/T 8564 Specification for installation of hydro-generating unit
GB/T 10969 turbines, storage pumps and pump turbine passage components conditions
GB/T 15468 Turbine basic technical requirements
GB/T 15469.1 turbines, storage pumps and pump - turbines cavitation pitting evaluation - Part 1. Evaluation in reaction turbines cavitation of
SL142 muddy water turbine model acceptance test procedure (with provision in)
DL/T 838-2003 Guide of maintenance for power plant equipment
IEC 60193 turbines, storage pumps, pump turbine model acceptance test procedure (Hydraulicturbines, storagepumps
andpump-turbines-Modelacceptancetests)
3 Terms and Definitions
GB/T 2900.45, GB/T 15468 and GB/T 15469.1 defined and the following terms and definitions apply to this document.
3.1
Reaction turbine reactionhydraulicturbine
By interacting with the runner blade flow will flow potential and kinetic energy is converted into mechanical energy output from the turbine.
NOTE. The main types of reaction turbine Francis turbine, axial flow turbine, oblique flow turbine and tubular turbines and the like.
3.2
Cavitation cavitation
Water partial pressure in the flow path down to the critical pressure (generally close to the vapor pressure), the water and air nuclear development to grow into bubbles, bubble
Accumulation, flow, division and general collapse of the process.
3.3
Aspiration height staticsuctionhead
Hs
Cavitation plane turbine tail water level with a predetermined elevation difference.
Note. The height of aspiration units represented by m.
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